Hi Ben.?
I'd use an ohm meter and test the paddle's cord from the end that plugs into your QMX to verify no continuity between tip and barrel, then between the ring and barrel. And tap each paddle while you're checking. It's OK to use a big toe to operate the paddle while your holding the leads on the plug.
If that checks out OK, (which rules out the paddle being the issue) then I'd do a manual factory reset and see if that clears it up.?
